Control system summary

Hydropower Plant Gantry Crane is specialized for hoisting generator rotor, which demands high security due to the great weight and high cost of the hoisted equipment. In general, a rotor needs to be hoisted by two cranes because of the great weight, which is difficult to be achieved with traditional relay logic control considering the safety.

HITE has developed dual crane cooperation control system on the basis of traditional single automation control. PLC and industrial field bus technology are used to achieve both wired and wireless communications between two cranes. The operation on two cranes have been integrated on one of them as controlling synchronizing served cranes, which contributes as the domestic leader.

Hydropower Plant Gantry Crane controlling system has been successfully applied in National Key Projects, which cover the double-trolley bridge crane (2x250t) for left bank plant and double hook crane (2x125t) for the temporary shiplock in Three Gorges Project, Wanjiazha Multipurpose Dam Project on the Yellow River and Er'tan Hydropower Project, on the leading edge internationally.